GH-40830: [Java] Adding Spotless to Performance module

Rationale for this change ========================= Applying Java code style and formatting options to Performance module. What changes are included in this PR? ===================================== Java code formatting via spotless plugin has been enabled. Are these changes tested? ========================= Yes, but doesn't involve test cases, the plugin itself corrects. Are there any user-facing changes? ================================== No
apache · Jun 10, 2024 · 39091d8 · 39091d8
1 parent 7179511
commit 39091d8
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Showing 22 changed files with 205 additions and 363 deletions.
diff --git a/java/performance/pom.xml b/java/performance/pom.xml
@@ -22,6 +22,8 @@
   <description>JMH Performance benchmarks for other Arrow libraries.</description>
 
   <properties>
+    <checkstyle.config.location>dev/checkstyle/checkstyle-spotless.xml</checkstyle.config.location>
+    <spotless.java.excludes>none</spotless.java.excludes>
     <jmh.version>1.37</jmh.version>
     <uberjar.name>benchmarks</uberjar.name>
     <skip.perf.benchmarks>true</skip.perf.benchmarks>

diff --git a/java/performance/src/main/java/org/apache/arrow/adapter/AvroAdapterBenchmarks.java b/java/performance/src/main/java/org/apache/arrow/adapter/AvroAdapterBenchmarks.java
@@ -14,13 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.arrow.adapter;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.util.concurrent.TimeUnit;
-
 import org.apache.arrow.adapter.avro.AvroToArrow;
 import org.apache.arrow.adapter.avro.AvroToArrowConfig;
 import org.apache.arrow.adapter.avro.AvroToArrowConfigBuilder;
@@ -52,9 +50,7 @@
 import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
-/**
- * Benchmarks for avro adapter.
- */
+/** Benchmarks for avro adapter. */
 @State(Scope.Benchmark)
 public class AvroAdapterBenchmarks {
 
@@ -65,21 +61,25 @@ public class AvroAdapterBenchmarks {
   private Schema schema;
   private BinaryDecoder decoder;
 
-  /**
-   * Setup benchmarks.
-   */
+  /** Setup benchmarks. */
   @Setup
   public void prepare() throws Exception {
     BufferAllocator allocator = new RootAllocator(Integer.MAX_VALUE);
     config = new AvroToArrowConfigBuilder(allocator).build();
 
-    String schemaStr = "{\n" + " \"namespace\": \"org.apache.arrow.avro\",\n" +
-         " \"type\": \"record\",\n" + " \"name\": \"testBenchmark\",\n" + " \"fields\": [\n" +
-         "    {\"name\": \"f0\", \"type\": \"string\"},\n" +
-         "    {\"name\": \"f1\", \"type\": \"int\"},\n" +
-         "    {\"name\": \"f2\", \"type\": \"long\"},\n" +
-         "    {\"name\": \"f3\", \"type\": \"boolean\"},\n" +
-         "    {\"name\": \"f4\", \"type\": \"float\"}\n" + "  ]\n" + "}";
+    String schemaStr =
+        "{\n"
+            + " \"namespace\": \"org.apache.arrow.avro\",\n"
+            + " \"type\": \"record\",\n"
+            + " \"name\": \"testBenchmark\",\n"
+            + " \"fields\": [\n"
+            + "    {\"name\": \"f0\", \"type\": \"string\"},\n"
+            + "    {\"name\": \"f1\", \"type\": \"int\"},\n"
+            + "    {\"name\": \"f2\", \"type\": \"long\"},\n"
+            + "    {\"name\": \"f3\", \"type\": \"boolean\"},\n"
+            + "    {\"name\": \"f4\", \"type\": \"float\"}\n"
+            + "  ]\n"
+            + "}";
     schema = new Schema.Parser().parse(schemaStr);
 
     ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -96,19 +96,19 @@ public void prepare() throws Exception {
       writer.write(record, encoder);
     }
 
-    decoder = new DecoderFactory().directBinaryDecoder(new ByteArrayInputStream(out.toByteArray()), null);
+    decoder =
+        new DecoderFactory().directBinaryDecoder(new ByteArrayInputStream(out.toByteArray()), null);
   }
 
-  /**
-   * Tear down benchmarks.
-   */
+  /** Tear down benchmarks. */
   @TearDown
   public void tearDown() {
     config.getAllocator().close();
   }
 
   /**
    * Test {@link AvroToArrow#avroToArrowIterator(Schema, Decoder, AvroToArrowConfig)}.
+   *
    * @return useless. To avoid DCE by JIT.
    */
   @Benchmark
@@ -117,7 +117,8 @@ public void tearDown() {
   public int testAvroToArrow() throws Exception {
     decoder.inputStream().reset();
     int sum = 0;
-    try (AvroToArrowVectorIterator iter = AvroToArrow.avroToArrowIterator(schema, decoder, config)) {
+    try (AvroToArrowVectorIterator iter =
+        AvroToArrow.avroToArrowIterator(schema, decoder, config)) {
       while (iter.hasNext()) {
         VectorSchemaRoot root = iter.next();
         IntVector intVector = (IntVector) root.getVector("f1");
@@ -131,10 +132,8 @@ public int testAvroToArrow() throws Exception {
   }
 
   public static void main(String[] args) throws RunnerException {
-    Options opt = new OptionsBuilder()
-        .include(AvroAdapterBenchmarks.class.getSimpleName())
-        .forks(1)
-        .build();
+    Options opt =
+        new OptionsBuilder().include(AvroAdapterBenchmarks.class.getSimpleName()).forks(1).build();
 
     new Runner(opt).run();
   }

diff --git a/java/performance/src/main/java/org/apache/arrow/adapter/jdbc/JdbcAdapterBenchmarks.java b/java/performance/src/main/java/org/apache/arrow/adapter/jdbc/JdbcAdapterBenchmarks.java
@@ -14,7 +14,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.arrow.adapter.jdbc;
 
 import java.sql.Connection;
@@ -23,7 +22,6 @@
 import java.sql.ResultSet;
 import java.sql.Statement;
 import java.util.concurrent.TimeUnit;
-
 import org.apache.arrow.adapter.jdbc.consumer.BigIntConsumer;
 import org.apache.arrow.adapter.jdbc.consumer.BitConsumer;
 import org.apache.arrow.adapter.jdbc.consumer.IntConsumer;
@@ -50,27 +48,23 @@
 import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
-/**
- * Benchmarks for Jdbc adapter.
- */
+/** Benchmarks for Jdbc adapter. */
 public class JdbcAdapterBenchmarks {
   // checkstyle:off: MissingJavadocMethod
 
   private static final int VALUE_COUNT = 3000;
 
   private static final String CREATE_STATEMENT =
-          "CREATE TABLE test_table (f0 INT, f1 LONG, f2 VARCHAR, f3 BOOLEAN);";
+      "CREATE TABLE test_table (f0 INT, f1 LONG, f2 VARCHAR, f3 BOOLEAN);";
   private static final String INSERT_STATEMENT =
-          "INSERT INTO test_table (f0, f1, f2, f3) VALUES (?, ?, ?, ?);";
+      "INSERT INTO test_table (f0, f1, f2, f3) VALUES (?, ?, ?, ?);";
   private static final String QUERY = "SELECT f0, f1, f2, f3 FROM test_table;";
   private static final String DROP_STATEMENT = "DROP TABLE test_table;";
 
   private static final String URL = "jdbc:h2:mem:JdbcAdapterBenchmarks";
   private static final String DRIVER = "org.h2.Driver";
 
-  /**
-   * State object for the jdbc e2e benchmark.
-   */
+  /** State object for the jdbc e2e benchmark. */
   @State(Scope.Benchmark)
   public static class JdbcState {
 
@@ -87,7 +81,8 @@ public static class JdbcState {
     @Setup(Level.Trial)
     public void prepareState() throws Exception {
       allocator = new RootAllocator(Integer.MAX_VALUE);
-      config = new JdbcToArrowConfigBuilder().setAllocator(allocator).setTargetBatchSize(1024).build();
+      config =
+          new JdbcToArrowConfigBuilder().setAllocator(allocator).setTargetBatchSize(1024).build();
       Class.forName(DRIVER);
       conn = DriverManager.getConnection(URL);
 
@@ -129,9 +124,7 @@ public void tearDownState() throws Exception {
     }
   }
 
-  /**
-   * State object for the consume benchmark.
-   */
+  /** State object for the consume benchmark. */
   @State(Scope.Benchmark)
   public static class ConsumeState {
 
@@ -166,7 +159,8 @@ public static class ConsumeState {
     @Setup(Level.Trial)
     public void prepare() throws Exception {
       allocator = new RootAllocator(Integer.MAX_VALUE);
-      config = new JdbcToArrowConfigBuilder().setAllocator(allocator).setTargetBatchSize(1024).build();
+      config =
+          new JdbcToArrowConfigBuilder().setAllocator(allocator).setTargetBatchSize(1024).build();
 
       Class.forName(DRIVER);
       conn = DriverManager.getConnection(URL);
@@ -233,9 +227,7 @@ public void tearDown() throws Exception {
     }
   }
 
-  /**
-   * State object for the jdbc row consume benchmark.
-   */
+  /** State object for the jdbc row consume benchmark. */
   @State(Scope.Benchmark)
   public static class RowConsumeState {
 
@@ -256,7 +248,11 @@ public static class RowConsumeState {
     @Setup(Level.Trial)
     public void prepareState() throws Exception {
       allocator = new RootAllocator(Integer.MAX_VALUE);
-      config = new JdbcToArrowConfigBuilder().setAllocator(allocator).setTargetBatchSize(VALUE_COUNT).build();
+      config =
+          new JdbcToArrowConfigBuilder()
+              .setAllocator(allocator)
+              .setTargetBatchSize(VALUE_COUNT)
+              .build();
       Class.forName(DRIVER);
       conn = DriverManager.getConnection(URL);
 
@@ -305,14 +301,16 @@ public void tearDownState() throws Exception {
 
   /**
    * Test {@link JdbcToArrow#sqlToArrowVectorIterator(ResultSet, JdbcToArrowConfig)}.
+   *
    * @return useless. To avoid DCE by JIT.
    */
   @Benchmark
   @BenchmarkMode(Mode.AverageTime)
   @OutputTimeUnit(TimeUnit.MICROSECONDS)
   public int testJdbcToArrow(JdbcState state) throws Exception {
     int valueCount = 0;
-    try (ArrowVectorIterator iter = JdbcToArrow.sqlToArrowVectorIterator(state.resultSet, state.config)) {
+    try (ArrowVectorIterator iter =
+        JdbcToArrow.sqlToArrowVectorIterator(state.resultSet, state.config)) {
       while (iter.hasNext()) {
         VectorSchemaRoot root = iter.next();
         IntVector intVector = (IntVector) root.getFieldVectors().get(0);
@@ -349,13 +347,10 @@ public void consumeRowsBenchmark(RowConsumeState state) throws Exception {
   }
 
   public static void main(String[] args) throws RunnerException {
-    Options opt = new OptionsBuilder()
-        .include(JdbcAdapterBenchmarks.class.getSimpleName())
-        .forks(1)
-        .build();
+    Options opt =
+        new OptionsBuilder().include(JdbcAdapterBenchmarks.class.getSimpleName()).forks(1).build();
 
     new Runner(opt).run();
   }
   // checkstyle:on: MissingJavadocMethod
 }
-
diff --git a/...rformance/src/main/java/org/apache/arrow/algorithm/search/ParallelSearcherBenchmarks.java b/...rformance/src/main/java/org/apache/arrow/algorithm/search/ParallelSearcherBenchmarks.java
@@ -14,13 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.arrow.algorithm.search;
 
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
-
 import org.apache.arrow.memory.BufferAllocator;
 import org.apache.arrow.memory.RootAllocator;
 import org.apache.arrow.vector.IntVector;
@@ -39,17 +37,13 @@
 import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
-/**
- * Benchmarks for {@link ParallelSearcher}.
- */
+/** Benchmarks for {@link ParallelSearcher}. */
 public class ParallelSearcherBenchmarks {
   // checkstyle:off: MissingJavadocMethod
 
   private static final int VECTOR_LENGTH = 1024 * 1024;
 
-  /**
-   * State object for the benchmarks.
-   */
+  /** State object for the benchmarks. */
   @State(Scope.Benchmark)
   public static class SearchState {
 
@@ -106,7 +100,8 @@ public void searchBenchmark(SearchState state) throws Exception {
   }
 
   public static void main(String[] args) throws RunnerException {
-    Options opt = new OptionsBuilder()
+    Options opt =
+        new OptionsBuilder()
             .include(ParallelSearcherBenchmarks.class.getSimpleName())
             .forks(1)
             .build();

diff --git a/java/performance/src/main/java/org/apache/arrow/memory/AllocatorBenchmarks.java b/java/performance/src/main/java/org/apache/arrow/memory/AllocatorBenchmarks.java
@@ -14,12 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.arrow.memory;
 
 import java.util.concurrent.TimeUnit;
-
-import org.apache.arrow.memory.ArrowBuf;
 import org.apache.arrow.memory.rounding.RoundingPolicy;
 import org.apache.arrow.memory.rounding.SegmentRoundingPolicy;
 import org.openjdk.jmh.annotations.Benchmark;
@@ -31,14 +28,10 @@
 import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
-/**
- * Benchmarks for allocators.
- */
+/** Benchmarks for allocators. */
 public class AllocatorBenchmarks {
 
-  /**
-   * Benchmark for the default allocator.
-   */
+  /** Benchmark for the default allocator. */
   @Benchmark
   @BenchmarkMode(Mode.AverageTime)
   @OutputTimeUnit(TimeUnit.MICROSECONDS)
@@ -59,9 +52,7 @@ public void defaultAllocatorBenchmark() {
     }
   }
 
-  /**
-   * Benchmark for allocator with segment rounding policy.
-   */
+  /** Benchmark for allocator with segment rounding policy. */
   @Benchmark
   @BenchmarkMode(Mode.AverageTime)
   @OutputTimeUnit(TimeUnit.MICROSECONDS)
@@ -71,7 +62,8 @@ public void segmentRoundingPolicyBenchmark() {
     final int segmentSize = 1024;
 
     RoundingPolicy policy = new SegmentRoundingPolicy(segmentSize);
-    try (RootAllocator allocator = new RootAllocator(AllocationListener.NOOP, bufferSize * numBuffers, policy)) {
+    try (RootAllocator allocator =
+        new RootAllocator(AllocationListener.NOOP, bufferSize * numBuffers, policy)) {
       ArrowBuf[] buffers = new ArrowBuf[numBuffers];
 
       for (int i = 0; i < numBuffers; i++) {
@@ -85,10 +77,8 @@ public void segmentRoundingPolicyBenchmark() {
   }
 
   public static void main(String[] args) throws RunnerException {
-    Options opt = new OptionsBuilder()
-            .include(AllocatorBenchmarks.class.getSimpleName())
-            .forks(1)
-            .build();
+    Options opt =
+        new OptionsBuilder().include(AllocatorBenchmarks.class.getSimpleName()).forks(1).build();
 
     new Runner(opt).run();
   }